FCL Series sensors use amperometric measurement technology to provide accurate monitoring of free chlorine in process applications. The sensors are compliant with U.S. EPA method 334.0 for measuring drinking water. Models are available to cover 0- to 2-ppm, 0- to 5-ppm and 0- to 10-ppm ranges. The sensors’ membrane design features a mesh reinforcement clamp for stability and durability. The integral 4-20 mA isolated signal output is enhanced to eliminate ground loop errors, reduce noise and block high-voltage transient surges.
Water treatment can be a complex problem to solve, depending on which contaminants may be present and the desired water quality. There are a variety of contaminants that can make water unsafe to drink, such as microorganisms, inorganic metals and other inorganic compounds, organic chemicals and radiologicals. The presence of certain contaminants like calcium, magnesium and iron may not affect the safety of the water, but can make it unpleasant to drink and more difficult to clean with.
Water quality testing can be a critical part of a company’s process. Whether it is a screening method for different water quality parameters, part of a process that requires the addition or subtraction of chemicals, or even compliance monitoring for consumables and effluents, water quality testing is a major part of the quality control process.
The Halo refillable glass pH probe comes with Bluetooth technology, allowing it to transmit measurement data directly to an iPad with its accompanying Hanna Lab App. This free application turns an iPad into a full-featured pH meter when paired with the wireless probe.
AWWA CEO David LaFrance thanks water professionals nationwide for keeping water safe for drinking
Dec. 16, 2014, marked the 40th anniversary of the Safe Drinking Water Act (SDWA), which today includes regulations for more than 90 contaminants. American Water Works Assn. (AWWA) CEO David LaFrance issued the following statement to mark the occasion.
The PetroChek portable or online crude and refined hydrocarbon monitor can be used to detect hydrocarbons in freshwater and marine environments. It can be used for a wide range of applications. It is sensitive to low hydrocarbon concentrations, and is ideally suited to real-time monitoring, either as a portable unit, in situ or online. It can provide early warning by first detecting a problem with hydrocarbons, then helping to control the environmental impact and remediation and treatment processes.
Radiological contamination of water is due to the presence of radionuclides, which are defined as atoms with unstable nuclei. In an effort to become more stable, a radionuclide emits energy in the form of rays or high-speed particles. This is called ionizing radiation because it displaces electrons, which creates ions. The three major types of ionizing radiation are alpha particles, beta particles and gamma rays.
Risks, testing & treatment of radionuclides in drinking water
This year's fellowships support the study of harmful algal blooms
The U.S. Environmental Protection Agency (EPA) announced that 105 graduate students across the nation will receive $8.6 million in Science to Achieve Results (STAR) fellowship grants to conduct research on topics ranging from climate change and public health to water quality and sustainability that will have cross-cutting impacts in the environmental science field. The 105 STAR fellows will receive a maximum funding of $42,000 for one year for master’s students and up to two years for doctoral students.
The ChlordioX Plus uses disposable ampermetric sensors to provide portable and user-friendly determination of chlorite in water samples. This method is more economical, less complex and faster than ampermetric titration methods. With a simple and sequential test protocol, no special training is required. Reliable and accurate testing can be completed in just 10 minutes.
Commercial environmental laboratories analyze large numbers of samples per day using approved methods, and produce data that need to be technically sound and legally defensible. The Shimadzu GCMS-QP2010 Series can help meet this need. Whether for analyzing VOCs, semi-volatiles, pesticides, PAHs or PCBs, these powerful instruments offer rapid analysis times, long-term calibration stability and greater uptime/usability with easier system maintenance.